package com.chengh.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.chengh.common.constant.ProductConstant;
import com.chengh.common.to.SkuHasStockVo;
import com.chengh.common.to.SkuRedutionTo;
import com.chengh.common.to.SpuBoundTo;
import com.chengh.common.to.es.SkuEsModel;
import com.chengh.common.utils.R;
import com.chengh.gulimall.product.entity.*;
import com.chengh.gulimall.product.feign.CouponFeignService;
import com.chengh.gulimall.product.feign.SerchFeignService;
import com.chengh.gulimall.product.feign.WareFeignService;
import com.chengh.gulimall.product.service.*;
import com.chengh.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.chengh.common.utils.PageUtils;
import com.chengh.common.utils.Query;

import com.chengh.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SerchFeignService serchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * // TODO 保存成功的逻辑写好了,保存失败的逻辑还写
     * @param vo
     */
    @Transactional
    @Override
    public void saveSupInfo(SpuSaveVo vo) {

        // 1.保存spu基本信息,pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuSave(spuInfoEntity);

        // 2.保存spu的描述图片,pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);

        // 3.保存spu的图片集,pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(),images);

        // 4.保存spu的规格参数,pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> attrValueEntities = baseAttrs.stream().map(item -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(item.getAttrId());
            AttrEntity byId = attrService.getById(item.getAttrId());
            productAttrValueEntity.setAttrName(byId.getAttrName());
            productAttrValueEntity.setAttrValue(item.getAttrValues());
            productAttrValueEntity.setQuickShow(item.getShowDesc());
            productAttrValueEntity.setSpuId(spuInfoEntity.getId());
            return productAttrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttrs(attrValueEntities);

        // 5.保存spu的积分信息,gulimall_sms->sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        // 6.保存当前spu的所有sku信息
        List<Skus> skus = vo.getSkus();
        if(skus != null && skus.size() > 0) {
            //   6.1).sku的基本信息,pms_sku_info
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages() ) {
                    if(1 == image.getDefaultImg()) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuUnfo(skuInfoEntity);

                //   6.2).sku的图片信息,pms_sku_images
                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    // filter: 返回true就是需要,返回false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                skuImagesService.saveBatch(imagesEntities);
                // TODO 没有路径,图片无需保存

                //   6.3).sku的销售属性信息,pms_sku_sale_attr_value
                List<Attr> attrs = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntityList = attrs.stream().map(attr -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(attr, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntityList);

                //   6.4).sku的优惠满减等信息:gulimall_sms->sms_sku_ladder\sms_sku_full_reduction\sms_member_price
                SkuRedutionTo skuRedutionTo = new SkuRedutionTo();
                BeanUtils.copyProperties(item,skuRedutionTo);
                skuRedutionTo.setSkuId(skuId);
                if(skuRedutionTo.getFullCount() > 0 || skuRedutionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {//满减信息,等于小于等于0件和满减价格小于等于0无意义,不保存
                    R r1 = couponFeignService.saveSkuReduction(skuRedutionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }




    }

    @Override
    public void saveBaseSpuSave(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondtion(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)) {
            queryWrapper.and(w->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)) {
            queryWrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            queryWrapper.eq("brand_id",brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
                queryWrapper.eq("catalog_id",catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params), queryWrapper);

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {

        // 1.查询出当前spuid对应的所有sku信息
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIds = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        // 查询当前sku的所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        List<Long> searchAttrIds =  attrService.selectSearchAttrIds(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrs = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());

        // TODO 1.发送远程服务至库存系统,库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            R r = wareFeignService.getSkuHasStock(skuIds);
            Integer code = r.getCode();
            System.out.println("调用库存系统返回的状态码: " + code);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };
            List<SkuHasStockVo> data = (List<SkuHasStockVo>) r.getData(typeReference);
            stockMap = data.stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, SkuHasStockVo::getHasStock));
        }catch (Exception e) {
            e.printStackTrace();
            log.error("库存服务查询异常: 原因{}",e);
        }


        // 2.封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            /* 组装我们需要的数据 */
            SkuEsModel skuEsModel = new SkuEsModel();

            //把相同的属性拷贝过来
            BeanUtils.copyProperties(sku,skuEsModel);
            //部分需要单独处理
            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setSkuImg(sku.getSkuDefaultImg());

            //设置库存信息
            if(finalStockMap == null) {
                skuEsModel.setHasStock(false);
            }else {
                skuEsModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            // TODO 2.热度评分,我们默认为0,实际上刚上架可以给热度,留到后续添加.
            skuEsModel.setHotScore(0L);

            // 品牌相关的信息
            BrandEntity brandEntity = brandService.getById(skuEsModel.getBrandId());
            skuEsModel.setBrandName(brandEntity.getName());
            skuEsModel.setBrandImg(brandEntity.getLogo());

            // 分类相关的信息
            CategoryEntity categoryEntity = categoryService.getById(skuEsModel.getCatalogId());
            skuEsModel.setCatalogName(categoryEntity.getName());

            //attrs集合,设置检索属性
            skuEsModel.setAttrs(attrs);

            return skuEsModel;
        }).collect(Collectors.toList());

        // 3.将我们获得数据发送给es进行保存 gulimall-search
        R r = serchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0) {
            //远程调用成功
            // TODO 6.修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            // TODO 7.重复调用? 接口幂等性;重试机制?
        }
    }

}